K/U C SINUSOIDAL FUNCTIONS /18 18 A. KNOWLEDGE AND UNDERSTANDING 1. For each of the following sinusoidal function, determine the equation of the axis, amplitude, period, phase shift, range, and domain without graphing. (But you can sketch if you want) a) y=3cos(2x)-4 b) y= -2sin(2x - 30)+3 /12 2. State the transformations, in the order you would apply them, for each sinusoidal. a) f(x)=sin(4x)+2 b) f (x) = -2sin [3 (x-30.)1-2 /6 B. COMMUNCATION 3. Determine whether the following graphs represent a periodic function. If it does, determine whether it represents a sinusoudal function. If(x ) c) 20 /(x) /8 5 10 15 20 25 b) 2 71(x ) d) If( x ) 010 20/ 30 40 60